Accession Number:

ADA620913

Title:

Evaluation of Procedures for Backcalculation of Airfield Pavement Moduli

Descriptive Note:

Final rept. Oct 2013-Aug 2014

Corporate Author:

ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS GEOTECHNICAL AND STRUCTURES LAB

Report Date:

2015-08-01

Pagination or Media Count:

164.0

Abstract:

During the period October 2013 through August 2014, research was conducted at the U.S. Army Engineer Research and Development Center ERDC in Vicksburg, MS, to improve the U.S. Air Force s USAF s airfield pavement structural evaluation procedures. Determining the structural integrity of airfield pavement relies on the analysis of pavement deflection data collected using the falling weight deflectometer FWD or heavy weight deflectometer HWD. These deflection data are used to backcalculate pavement layer moduli, which are then used to determine the number of allowable passes and the allowable load that the pavement is able to support. The current airfield pavement analysis procedures, including the processes used for backcalculating layer moduli, were reviewed and compared to processes utilized by other transportation agencies and those proposed by academia. Airfield deflection data were then analyzed using current and proposed backcalculation procedures to provide recommendations for improving both the software and processes used by the USAF in evaluating the structural capacity of airfield pavement assets. This report summarizes the literature review, presents analyses of FWDHWD data, and provides recommendations for improving the procedures used for backcalculation.

Subject Categories:

  • Terminal Flight Facilities
  • Computer Programming and Software
  • Civil Engineering
  • Structural Engineering and Building Technology
  • Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE